Examine source code of Yellow Flower Tree

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Yellow Flower Tree",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(176, 176, 176, 0.44)",
      "toolbar_text": "rgba(0, 0, 0, 0.85)",
      "frame": "rgb(215, 207, 155)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgba(0, 0, 0, 0.85)",
      "tab_line": "rgb(255, 227, 123)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgb(255, 227, 123)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f9e719c1-1b83-4a17-bace-a082d635a315}"
    }
  }
}